Idk is a mysterious word that absolutely no one knows what it means.
Human 1: What does IDK mean?
Human 2: I don't know.
if you don't know what to say, say this
Person 1: What do I do with my life?
Person 2: idk
A mysterious phrase. Nobody seems to know what it means.
Person 1: "What does IDK mean?"
Person 2: "I don't know"